Mitsubishi Electric MELSEC FX Series - Page 59

5 Basic Instruction
5.1 LD, LDI, AND, ANI, OR, OR
57
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
Function and operation explanation
1. LD (Initial logical operation of NO (normally open) contacts)
2. LDI (Initial logical operation of NC (normally closed) contact type)
X000
LD
[Structured ladder]
ONON
X000
ONON
Y000
timing chart
Bus line
Y000
Y000:= X000;
[ ST ]
X000
LDI
[Structured ladder]
ONON
ONON
X000
Y000
timing chart
Bus line
Y000
Y000:= NOT X000;
[ ST ]